Algebra Seminar

Title: Conjugation-free geometric presentations of fundamental groups of arrangements.
Speaker: Michael Friedman
Speaker Info: Institute Fourier, Grenoble
Brief Description:
Special Note:

The fundamental group of the complement of a line and conic-line arrangements in the plane plays an important role in studying these arrangements. We introduce the notion of a conjugation-free geometric presentation for such fundamental groups. The main motivation for defining this presentation is due to the fact that for arrangements having such a presentation, their intersection lattice determines the fundamental group. We present some families of these arrangements having a conjugation-free geometric presentation and exhibit the special properties that the fundamental group has.
Date: Wednesday, June 12, 2013
Time: 2:00pm
Where: Linguistics Department Seminar Room (2016 Sheridan Road)
Contact Person: Prof. Nir Avni
Contact email:
Contact Phone:
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